Babies benefit from breast-feedingthey have a lower risk of infections, vomiting and diarrhea and less of a chance of later developing adult onset diabetes. And now a study finds that being breast-fed helps protect infants who are genetically predisp

发表于:2018-12-24 / 阅读(72) / 评论(0) 分类 2016年Scientific American(十二)月

By Melinda Smith Washington, DC 22 June 2006 watch Stem Cell report A new medical treatment injecting embryonic stem cells and other drugs into paralyzed mice has researchers wondering if it could eventually help humans suffering from Parkinson's an

发表于:2019-01-09 / 阅读(119) / 评论(0) 分类 2006年VOA标准英语(六月)

New Yellow Fever Vaccine Shows Promise A new vaccine for yellow fever is showing good results in tests as it overcomes one of the biggest problems with the current version. Yellow fever is a deadly disease that occurs in much of South America and sub

发表于:2019-01-14 / 阅读(86) / 评论(0) 分类 VOA标准英语2011年(四月)

By Paul Sisco Washington 11 July 2007 The world's largest particle physics laboratory is under construction on the border between Switzerland and France. At the heart is the Large Hadron Collider Particle Accelerator being built by the European Organ

发表于:2019-01-31 / 阅读(132) / 评论(0) 分类 2007年VOA标准英语(七月)

1794 replica 今天我们要学的词是replica. Replica 是复制品的意思。Lego built a life-sized replica of an X-Wing Fighter, the iconic spaceship from the Return of the Jedi. 乐高公司搭建了一个跟星球大战6杰迪归来里的经典

发表于:2019-02-24 / 阅读(69) / 评论(0) 分类 英语单词荟萃